SE9601372L - Method and apparatus for washing sawdust - Google Patents

Method and apparatus for washing sawdust

Info

Publication number
SE9601372L
SE9601372L SE9601372A SE9601372A SE9601372L SE 9601372 L SE9601372 L SE 9601372L SE 9601372 A SE9601372 A SE 9601372A SE 9601372 A SE9601372 A SE 9601372A SE 9601372 L SE9601372 L SE 9601372L
Authority
SE
Sweden
Prior art keywords
sawdust
vessel
mixture
washing
disclosed
Prior art date
Application number
SE9601372A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE506340C2 (en
SE9601372D0 (en
Inventor
Jan Henriksson
Original Assignee
Sunds Defibrator Ind Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab
Priority to SE9601372A priority Critical patent/SE506340C2/en
Publication of SE9601372D0 publication Critical patent/SE9601372D0/en
Priority to US08/775,270 priority patent/US5917166A/en
Priority to AT0056697A priority patent/AT406563B/en
Priority to DE19714000A priority patent/DE19714000A1/en
Priority to NO971647A priority patent/NO971647L/en
Publication of SE9601372L publication Critical patent/SE9601372L/en
Publication of SE506340C2 publication Critical patent/SE506340C2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D21B1/023—Cleaning wood chips or other raw materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Paper (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

Methods for washing sawdust are disclosed which include providing a mixture of sawdust and water to a vessel, subjecting the mixture to a reduced pressure so that gases present in the sawdust cause expansion therein and the sawdust rises to the surface of the mixture while the contaminants descend within the vessel, and withdrawing the sawdust from the vessel, in which the sawdust is withdrawn from the vessel at a location above the point where the sawdust and water enter the vessel. Apparatus for carrying out this method is also disclosed.
SE9601372A 1996-04-11 1996-04-11 Method and apparatus for washing sawdust SE506340C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9601372A SE506340C2 (en) 1996-04-11 1996-04-11 Method and apparatus for washing sawdust
US08/775,270 US5917166A (en) 1996-04-11 1997-03-27 Method of washing sawdust and arrangement for carrying out the method
AT0056697A AT406563B (en) 1996-04-11 1997-04-03 METHOD FOR WASHING CHOPPES OR SAW CHIPS AND DEVICE FOR CARRYING OUT THIS METHOD
DE19714000A DE19714000A1 (en) 1996-04-11 1997-04-08 Washing system for wood chips
NO971647A NO971647L (en) 1996-04-11 1997-04-10 Process for drying sawdust and apparatus for carrying out this method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9601372A SE506340C2 (en) 1996-04-11 1996-04-11 Method and apparatus for washing sawdust

Publications (3)

Publication Number Publication Date
SE9601372D0 SE9601372D0 (en) 1996-04-11
SE9601372L true SE9601372L (en) 1997-10-12
SE506340C2 SE506340C2 (en) 1997-12-08

Family

ID=20402150

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9601372A SE506340C2 (en) 1996-04-11 1996-04-11 Method and apparatus for washing sawdust

Country Status (5)

Country Link
US (1) US5917166A (en)
AT (1) AT406563B (en)
DE (1) DE19714000A1 (en)
NO (1) NO971647L (en)
SE (1) SE506340C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10216954B4 (en) * 2002-04-17 2004-10-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for the recovery of chips and fibers from wood material residues and plant for the further treatment of the chips obtained by digestion

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452862A (en) * 1967-02-23 1969-07-01 Pet Inc Separation of pecan meats and shells
DD129872A5 (en) * 1977-01-28 1978-02-15 Horst Stenzel APPENDIX FOR SUCTION AND STORAGE OF SOVENES AND DUST
US4378289A (en) * 1981-01-07 1983-03-29 Hunter A Bruce Method and apparatus for centrifugal separation
SU1186719A1 (en) * 1984-03-21 1985-10-23 Всесоюзный Научно-Исследовательский Институт Деревообрабатывающей Промышленности Method of cleaning chips from impurities
FI81397C (en) * 1988-07-12 1990-10-10 Ahlstroem Oy Method and apparatus for removing light material from a fiber's suspension
US5011087A (en) * 1990-05-14 1991-04-30 Richardson Larry D Method of and apparatus for continuously treating comminuted synthetic plastic containers and products having contaminants bonded thereto for recycling purposes
ATE108342T1 (en) * 1991-01-31 1994-07-15 Kreyenberg Heiner PROCESSES FOR TREATMENT OF DEPOSITS.
US5720393A (en) * 1996-03-25 1998-02-24 Board Of Trustees Operating Michigan State University Method and apparatus for the separation of manure and sand

Also Published As

Publication number Publication date
DE19714000A1 (en) 1997-10-16
SE506340C2 (en) 1997-12-08
NO971647D0 (en) 1997-04-10
NO971647L (en) 1997-10-13
ATA56697A (en) 1999-11-15
SE9601372D0 (en) 1996-04-11
AT406563B (en) 2000-06-26
US5917166A (en) 1999-06-29

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